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    • 50. 发明公开
    • Thermoplastic fluorinated polymers
    • 热塑性氟塑料Polymere
    • EP1125982A2
    • 2001-08-22
    • EP01101784.5
    • 2001-01-26
    • Ausimont S.p.A.
    • Abusleme, Julio A.Manzoni, Claudia
    • C08L27/12
    • C08L27/12C08L2205/02C08L2666/04
    • A composition comprising a polymer mixture A of polymers formed by:

      (a) from 10 to 70% by moles of ethylene (E),
      (b) from 30 to 90%, by moles of a fluorinated monomer selected from tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE), or mixtures thereof,
      (c) from 0.1 to 30% by moles, with respect to the total amount of monomers (a) and (b), of one or more acrylic monomers;
      characterized in that the polymer mixture A comprises polymer fractions having a different content of the acrylic comonomer such that the elastic modulus at 23°C (ASTM D1708) of said polymer mixture A is lower than at least 10% of the elastic modulus of a polymer formed by monomers a), b) and c) wherein the polymer fractions have substantially an equal content of the acrylic comonomer.
    • 一种包含聚合物混合物A的组合物,其通过以下步骤形成:(a)10至70摩尔%的乙烯(E),(b)30至90摩尔%的选自四氟乙烯(TFE), 氯三氟乙烯(CTFE)或其混合物,(c)相对于单体(a)和(b)的总量为0.1至30摩尔%的一种或多种丙烯酸类单体; 其特征在于,聚合物混合物A包含具有不同含量的丙烯酸共聚单体的聚合物级分,使得所述聚合物混合物A的23℃下的弹性模量(ASTM D1708)低于聚合物的弹性模量的至少10% 由单体a),b)和c)形成,其中聚合物级分具有基本相等的丙烯酸共聚单体含量。